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Joint Polar Satellite System

From our global observations to your local weather forecast
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JPSS Science Overview


Earth Data

NOAA’s JPSS satellites provide critical environmental satellite data to support NOAA’s ongoing mission to understand and predict changes in the weather, in the oceans and along the coasts, and the climate. The JPSS Program Science ensures the scientific integrity of the JPSS mission and oversees user readiness through management of user requirements, evaluation of scientific JPSS products, and establishing forums for user engagement to assess the use of JPSS products in NOAA's s critical product and services (e.g., weather forecasting) and a variety of other applications (e.g., monitoring harmful algal blooms).

JPSS Program Science, working with NOAA's Satellite and Information Service, Center for Satellite Applications and Research (STAR), Office of Satellite Ground Services, and Office of Satellite Products and Operations, and JPSS flight instrument scientists, encompasses:




Ensuring the Integrity of JPSS Data


The JPSS Senior Project Scientist and the Deputy Senior Project Scientist, who also serves as the JPSS Flight Project Scientist, coordinate the prelaunch testing of each instrument JPSS satellites carry. In addition, each individual instrument has an instrument scientist who works with the JPSS Flight Project Scientist to coordinate each device's requirements review and analysis, test plan review and analysis, independent test data analysis, special test data analysis, and independent verification of critical instrument performance requirements.

The Instrument Scientists collaborate with NOAA STAR's Sensor Data Records (SDRs) Team Leads to provide:

  • The SDR analysis team with support.
  • The JPSS Ground System with specific JPSS-1 instrument data needed for SDR algorithms pre-launch and post-launch.
  • The JPSS Mission Operations Team with on-orbit calibration maneuver scheduling and execution details, post-launch instrument calibration support and post-launch instrument anomaly support.